• English speaking customer support only

    Toll Free - USA & Canada only:
    1-800-464-1640

    International:
    +66-39303404

  • Change Language

    • Language image for EnglishEnglish
    • Language image for FrenchFrançais
    • Language image for SpanishEspañol
    • Language image for ItalianItaliano
    • Language image for GermanDeutsch
    • Language image for RussianPусский
    • Language image for Chinese中文
    • Language image for Japanese日本語
    • Language image for Arabicالعربية
    Change Language
  • USD

    Change Currency

    • EUR = Euro
    • GBP = British Pound
    • USD = U.S. Dollar
    • AED = United Arab Emirates Dirham
    • AUD = Australian Dollar
    • BHD = Bahraini Dinar
    • BND = Brunei Dollar
    • CAD = Canadian Dollar
    • CHF = Swiss Franc
    • CNY = Chinese Yuan
    • CZK = Czech Koruna
    • DKK = Danish Krone
    • EGP = Egyptian Pound
    • EUR = Euro
    • GBP = British Pound
    • HKD = Hong Kong Dollar
    • IDR = Indonesian Rupiah
    • ILS = Israeli New Shekel
    • INR = Indian Rupee
    • IQD = Iraqi Dinar
    • JOD = Jordanian Dinar
    • JPY = Japanese Yen
    • KRW = South Korean Won
    • KWD = Kuwaiti Dinar
    • MXN = Mexican Peso
    • MYR = Malaysian Ringgit
    • NOK = Norwegian Krone
    • NZD = New Zealand Dollar
    • OMR = Omani Rial
    • PHP = Philippine Piso
    • PLN = Polish Złoty
    • QAR = Qatari Riyal
    • RUB = Russian Ruble
    • SAR = Saudi Riyal
    • SEK = Swedish Krona
    • SGD = Singapore Dollar
    • TWD = New Taiwan Dollar
    • USD = U.S. Dollar
    • VND = Vietnamese Dồng
    • ZAR = South African Rand
Shop By

Single

Pairs

Lots

Faceted

Cab

Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (258): Oval Shape 20x15 mm Gems Clear All
Sort By:
Click for Details
Compare
1 pc
Add to Cart
thumb image of 15.6ct Oval Checkerboard (double sided) Brown Smoky Quartz (ID: 416884)
15.57 ct Smoky Quartz
20.1 x 15 mm
$ 23.36
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Click for Product Video (445591)
thumb image of 21.5ct Oval Facet Violet to Blue Color-Change Fluorite (ID: 445591)
21.46 ct Color-Change Fluorite
20 x 15.1 mm
$ 538.22
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 20.6ct Oval Facet Violet to Blue Color-Change Fluorite (ID: 445418)
20.55 ct Color-Change Fluorite
20.1 x 15.1 mm
$ 515.39
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 18.8ct Oval Checkerboard Violet to Blue Color-Change Fluorite (ID: 445414)
18.83 ct Color-Change Fluorite
19.8 x 15 mm
$ 472.26
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 15.1ct Oval Checkerboard (double sided) Brown Smoky Quartz (ID: 416957)
15.08 ct Smoky Quartz
19.8 x 15 mm
$ 22.62
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
thumb image of 14ct Oval Cabochon Multicolor Jasper (ID: 371108)
13.95 ct (total 27.89ctw) Jasper
20.1 x 15.1 mm
$ 27.89
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 26ct Oval Cabochon Pink Rose Quartz (ID: 316150)
26.04 ct Rose Quartz
19.8 x 15.1 mm
$ 31.25
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 32.4ct Oval Cabochon Green Maw-Sit-Sit (ID: 476986)
32.40 ct Maw-Sit-Sit
19.9 x 14.8 mm
$ 97.20
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 21ct Oval Cabochon Smoke Moonstone (ID: 378219)
21.02 ct Moonstone
20.1 x 15.1 mm
$ 42.04
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 23ct Oval Cabochon Multicolor Tiger's Eye Matrix (ID: 405931)
23.02 ct Tiger's Eye Matrix
20.1 x 15.2 mm
$ 24.63
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 22.3ct Oval Cabochon Multicolor Tiger's Eye Matrix (ID: 405933)
22.34 ct Tiger's Eye Matrix
20.2 x 15.1 mm
$ 23.90
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 16.4ct Oval Cabochon Multicolor Jasper (ID: 481321)
16.43 ct Jasper
19.9 x 15.1 mm
$ 12.32
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 22.2ct Oval Cabochon Multicolor Tiger's Eye Matrix (ID: 405932)
22.16 ct Tiger's Eye Matrix
20 x 15 mm
$ 23.71
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 19.7ct Oval Cabochon Multicolor Tiger's Eye Matrix (ID: 405806)
19.65 ct Tiger's Eye Matrix
19.7 x 14.9 mm
$ 21.03
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 18.7ct Oval Cabochon Multicolor Tiger's Eye Matrix (ID: 405802)
18.68 ct Tiger's Eye Matrix
20.2 x 15.2 mm
$ 19.99
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 15ct Oval Cabochon Multicolor Tiger's Eye Matrix (ID: 406028)
14.99 ct Tiger's Eye Matrix
19.8 x 15.1 mm
$ 18.14
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Click for Product Video (484208)
thumb image of 17.4ct Oval Cabochon Greenish Yellow Cat's Eye Opal (ID: 484208)
17.41 ct Cat's Eye Opal
19.9 x 15.2 mm
$ 87.05
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 23.5ct Oval Cabochon Multicolor Rhodochrosite (ID: 392108)
23.53 ct Rhodochrosite
20.1 x 14.8 mm
$ 47.06
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
thumb image of 12.8ct Oval Cabochon Multicolor Jasper (ID: 370460)
12.81 ct (total 25.62ctw) Jasper
20.1 x 15.2 mm
$ 38.43
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 23.7ct Oval Cabochon Multicolor Rhodochrosite (ID: 392109)
23.65 ct Rhodochrosite
20 x 15 mm
$ 47.30
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
thumb image of 24.3ct Oval Cabochon Multicolor Rhodochrosite (ID: 391833)
24.26 ct Rhodochrosite
20 x 15 mm
$ 48.52
Item in Stock
1 2 3 4 5 6 7 8 9 10 11 12
Oval Shape 20x15 mm Gems
Some people by gems by color or pricze, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated oval shapes, facet cut and cabochon gems available now in 20 x 15 mm size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not usually expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

Certified Customer Reviews
Overall Rating -> 10 star ratings
Huge variety including unusual cuts and colors
Posted By Steffie in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I have bought several stones and am very happy with the price points, selection and speed of delivery. Sometimes the quality is not quite what I expected but given the prices, I am overall satisfied.
Posted By in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
offer military prices
Posted By Frobb1968 in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Trustworthy company & site, great products.
Posted By KM in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I have been ordering from GemSelect for at least 6 years. Every single order was perfect - every item was as advertized, in perfect condition and arrived well within the specified time frame. I have recommended them to several friends.
Posted By Jim in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Excellent company with excellent website!
Posted By Marcy in August, 2018
Source: Bizrate
English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39303404

Save Money
No shipping Fees for Additional Items!
$6.99 Worldwide Shipping

Update Translation
 
Current Value
New Value

Creating Account...

Close window to continue

Facebook did not provide your email to login.

Please allow Facebook to provide your email or sign up an account with GemSelect.

GemSelect Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart